Go give it a go and as a minimum, you'll learn something about why it doesn't already exist yet and in the best case scenario, you'll create something that lots of people find useful!
You would use an engraving service. Almost every town has one[1]. There are also online options[2].
1. https://www.google.com/search?q=brick+engraver+name_of_town&...
I am surprised I had to call this out explicitly, given that I even listed the ones at Disneyland as an example.
Have you actively seeked out such an opportunity, or are you waiting for one to present itself?
And before someone asks, this isn't restricted to the amusement park. Think schools, colleges, institutions near me, etc.